HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

Parallel Advisors, LLC's Holding History (CIK: 0001690010)

Note: Option positions (PUT/CALL) are excluded.

Q1 2022
Shares 47 Value ($000) $1 Avg Close — Range —
Q4 2021
Shares 47 Value ($000) $1 Avg Close — Range —
Q3 2021
Shares 47 Value ($000) $1 Avg Close — Range —